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Release: 2026
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About Arithmancy

Arithmancy - about the game

Down in the forgotten depths of a shifting medieval crypt, math is the only tool for survival. Arithmancy is a grim, grid-based FPS dungeon crawler where logical puzzle-solving meets tense exploration. Armed with a mysterious, ancient 3D calculator—the Matrix Engine—you must decipher complex numerical runes, solve procedural puzzle tiers, and manipulate the environment to survive the dark. Can you calculate your way out, or will you become just another skeleton in the vault?

CRACK THE CODES OF THE CRYPT

Welcome to a dungeon crawler where your brain is your greatest weapon. In Arithmancy, you are trapped in a claustrophobic, grid-based dungeon filled with ancient mechanisms and forbidden secrets. Progress isn't just about finding keys; it’s about solving the complex, numerical runes blocking your path.

THE MATRIX ENGINE: YOUR LOGICAL ARSENAL

You don't wield swords or traditional spellbooks. Instead, you carry a cryptic, 3D mechanical calculator. This ancient device is your primary tool for interacting with the world. Manipulate numbers, input precise variables, and solve puzzle tiers to unlock heavy stone vaults, disarm environmental traps, and reshape the corridors around you.

KEY FEATURES:
  • Grid-Based Exploration: Immerse yourself in a classic, step-by-step FPS dungeon crawler layout that demands spatial awareness and careful planning.

  • The Logic of Numbers: Engage with a unique puzzle ecosystem where mathematical logic dictates the laws of an ancient, mechanical world.

  • Atmospheric Dark Fantasy: Step into a gritty, low-poly world of cold stone, pulsing cyan magical energy, and deep shadows, completely wrapped in a heavy, mysterious audio landscape.

  • Procedural Challenge: Face ever-shifting layouts and tiered numerical trials that ensure no two descents into the vault feel exactly the same.

Age rating

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FAQ

8 questions

Before you start looking for a cheap Arithmancy PC key, check the essentials. Developed by Pumpkin41. Published by Pumpkin41. PC released date: 2026. Genres: Action, Adventure. Categories: Family Sharing, Single-player, Full controller support.

Q

Where to buy a cheap Arithmancy Steam key or CD key?

There are currently no active offers for Arithmancy. Set a price alert on XD.deals and we will notify you the moment a deal becomes available.

We don't have a current Steam Store price for Arithmancy. The game may be temporarily unavailable or not yet listed on Steam.

Our price tracker covers both official retailers and key marketplaces, so you can find Arithmancy on sale even outside seasonal promotions. We currently detect 0 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Arithmancy is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Arithmancy has an official page on the Steam Store, but we currently don't track any third-party offers with Steam DRM. Check back later or set a price alert.

Not at this time. Valve marks Arithmancy as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

Arithmancy does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

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